.message_card {
    font-size: 18px;
    font-weight: bold;
    color: #303030;
    line-height: 30px;
    .message_type {
        cursor: pointer;
        margin-right: 58px;
        position: relative;
    }

    .message_type_active  {
        color: #4779F6;
    }
    
    .message_type_active::after {
        content: '';
        position: absolute;
        width: 100px; // 边框的宽度
        height: 2px;
        border-radius: 3px;
        left: 50%; //距离 view 标签的距离
        bottom: -10px;
        background-color: #4779F6; //  颜色
        transform: translateX(-50%);
    }
}

.message_content { 
    margin-top: 5px;
    background: #fff; 
    overflow: auto;
    cursor: pointer;
    padding: 10px;
    .message_content_box {
        padding:10px;
        .title {
            font-size: 18px;
            font-weight: bold;
            color: #303030;
            line-height: 54px;
            position: relative;
        } 

        .date {
            color: #606060;
        }

        .text {
            display: inline-block;
            margin-top: 20px;
            font-size: 14px;
            font-weight: 400;
            color: #606060;
            line-height: 14px;
        }
        .line {
            margin: 30px  0 15px 0;
            border-bottom: 1px solid #D7D7D7;
            opacity: 0.43;
        }
    }

    .message_content>.message_content_box:hover{ 
        background-color: #eee;
    }
}